Tree-Free Greetings Christmas Cards and Envelopes, Set of 12, 4" x 6", Holiday Lights (FS93511) Inside: friends and family are the holiday lights that Glow from within. Sending glowing holiday wishes Vibrantly Printed inside and out on premium coated stock; 100% post consumer recycled paper Paper made with wind power, processed chlorine free, green-E certified Sustainable; made in the USA Holiday lights themed art by Chiara castellini